How to Remove Featured Image

1. Open the 'Posts' menu on the left side of the WordPress dashboard menu. WordPress displays a list of the posts that are in published or draft status on your website.
2. Click 'Edit' under the name of the post that you want to remove a featured image from. The word 'Edit' appears when you hover the mouse pointer over the name of the post. WordPress opens the post editing screen and displays the contents of that post.

3. Scroll to the 'Featured Image' section in the post editor, and click the 'Remove Featured Image' link under the image that you want to remove.